What Aspect of Fire Development Is a Result of an Increase

question 59

Multiple Choice

What aspect of fire development is a result of an increase in low-level ventilation prior to upper level ventilation?

• A) Rollover
• B) Backdraft
• C) Combustion
• D) Smoke explosion

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Definitions:

Lumbar Vein

A vein that drains the posterior wall of the abdomen and the spinal cord in the lumbar region.

Ventral Thoracic Vein

A vein located in the ventral (front) part of the thorax, involved in blood circulation.

Subscapular Vein

A vein located beneath the scapula, responsible for draining blood from the shoulder and upper back areas.

Internal Thoracic Vein

A vein located along the inner side of the thoracic wall, draining blood from the chest wall and breasts back to the heart.